CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE EARNINGS - USD ($) $ in Millions	3 Months Ended
	Dec. 29, 2017	Dec. 30, 2016
Statement of Comprehensive Income [Abstract]
Net earnings	$ 11.4	$ 11.2
Other comprehensive earnings, net of tax:
Unrealized gain on interest rate swap contracts, net of tax expense of $0.6 and $0 during the three months ended December 29, 2017 and December 30, 2016, respectively	1.8	0.0
Other comprehensive earnings, net of tax	1.8	0.0
Comprehensive earnings	13.2	11.2
Less: Net earnings attributable to noncontrolling interests	0.1	0.1
Comprehensive earnings attributable to Varex	$ 13.1	$ 11.1